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Net Income Per Share: | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
Net Income Per Share [Text Block] | Net Income Per Share Basic earnings per share is computed by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income by the weighted-average number of common shares outstanding during the period plus dilutive securities. Dilutive securities include outstanding common stock options and unvested restricted stock units, less the number of shares that could have been purchased with the proceeds from the exercise of the options, using the treasury stock method. Options and restricted stock units that are anti-dilutive are not included in the treasury stock method calculation. Due to the net loss for the three months ended March 31, 2022, any potentially common shares were not included in the computation of diluted earnings per share as they would have had an anti-dilutive effect, therefore basic and diluted net loss per share are equal for the period. There were nil and 12,080 anti-dilutive securities for the three months ended March 31, 2022 and March 31, 2021, respectively. The following table presents the calculation of net earnings per common share (“EPS”) — basic and diluted (in thousands, except per share data):
| Three months ended March 31, |  |
| 2022 |  | 2021 |  |  |  |
Net (loss) income | $ | (38,068) |  |  | $ | 23,731 |  |  |  |  |
Weighted-average number of common shares outstanding (basic) | 23,646 |  |  | 21,149 |  |  |  |  |
Dilutive securities(1) | — |  |  | 546 |  |  |  |  |
Weighted-average common and common equivalent shares outstanding (diluted) | 23,646 |  |  | 21,695 |  |  |  |  |
EPS — basic | $ | (1.61) |  |  | $ | 1.12 |  |  |  |  |
EPS — diluted | $ | (1.61) |  |  | $ | 1.09 |  |  |  |  |
_______________________________ (1) No dilutive effect for the three months ended March 31, 2022; therefore, zero incremental shares included for the period.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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